Comparison experiment of cryogenic radiometer of different calibration optical path

Pang Weiwei; Zheng Xiaobing; Li Jianjun; Shi Xueshun; Wu Haoyu; Liu Changming; Liu Yulong; Xia Maopeng; Gao Dongyang; Shi Jianming; Kang Qing; Qi Tao

doi:10.3788/IRLA201645.0317004

Cryogenic radiometer currently is used as the supreme standard for the measurement of light power, whose accuracy evaluation can be acquired through the results between different cryogenic radiometer equipment. With trap detector serving the transfer standard and the calibration optical path in cryogenic radiometer being distinct, a comparison experiment was carried out between two equipments for the first time in China. The absolute spectral responsivity of transfer standard was calibrated at 633 nm wavelength. The results show that the consistence of absolute spectral responsivity is 3.610-3 and the combined uncertainty is 3.310-4(k=1). It is proved that the two cryogenic radiometer equipments are of high reliability and accuracy.

Comparison experiment of cryogenic radiometer of different calibration optical path

1. Key Laboratory of Optical Calibration and Characterization,Chinese Academy of Sciences,Hefei 230031,China;

2. 41st Institute of China Electronics Technology Group Corporation,Qingdao 266555,China

Received Date: 2015-07-09

Rev Recd Date: 2015-08-11

Publish Date: 2016-03-25

Key words:

Abstract: Cryogenic radiometer currently is used as the supreme standard for the measurement of light power, whose accuracy evaluation can be acquired through the results between different cryogenic radiometer equipment. With trap detector serving the transfer standard and the calibration optical path in cryogenic radiometer being distinct, a comparison experiment was carried out between two equipments for the first time in China. The absolute spectral responsivity of transfer standard was calibrated at 633 nm wavelength. The results show that the consistence of absolute spectral responsivity is 3.610-3 and the combined uncertainty is 3.310-4(k=1). It is proved that the two cryogenic radiometer equipments are of high reliability and accuracy.

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Reference (9)

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Comparison experiment of cryogenic radiometer of different calibration optical path

doi: 10.3788/IRLA201645.0317004

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